— I regret _______ you that you failed the exam.— How I regret _______ so much time playing computer games.
Do you have any idea ___ is actually going on in the classroom?
If one of the computers _______, the whole networks would be unable to work.
Poor Richard spent his last penny on a bowl of noodles. Now he is______.
The little time I had outside of school was _______ with work.
Many students ______independent learning skills because the education system spoon-feeds them.